CN104972709A - High-heat-dissipation wave-absorbing composite film and manufacturing method thereof - Google Patents
High-heat-dissipation wave-absorbing composite film and manufacturing method thereof Download PDFInfo
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Abstract
The invention provides a high-heat-dissipation wave-absorbing composite film and a manufacturing method thereof, wherein the composite film includes, in a successively laminating manner, a first release layer or a first plastic protective film, a heat dissipating film layer, a wave absorption film layer, and a second release layer or a second plastic protective film. The wave absorption film layer directly coats the surface of the heat dissipating film layer and is cured. The heat dissipating film layer is laminated with the first release layer or the first plastic protective film through a first two-side glue layer or a first single-side glue layer. The second release layer or the second plastic protective film is laminated with the wave absorption film layer through a second two-side glue layer or a second single-side glue layer. The invention solves a problem of heat conduction and electromagnetic wave shielding in electronic devices.
Description
Technical field
The present invention relates to a kind of high heat radiation and inhale ripple composite membrane.
Background technology
Along with the develop rapidly of electronic technology, electronic product is just being rapidly to the future developments such as intellectuality, integrated, lightening, multifunction.These have the universal of the electronic product of various personalized entertainment function, have enriched the material life needs of people to a great extent; But meanwhile, also inevitably bring some problems, especially heat dissipation problem and electromagnetic interference problem.
In order to improve the function of intelligent electronic device, the more and more higher and use of double-core and four cores of the running frequency of chip is more and more general, but what bring thus is caloric value powerful equally, and high temperature then can reduce the usefulness of chip process data significantly.On ultra thin handset and computer, owing to provided with fan and fin etc. can not establish device, the problem of golf calorific value is then more serious, therefore uses heat dissipation film to become a kind of trend gradually.The normally used a kind of heat dissipation film of Copper Foil (thermal conductivity 400W/mk), and graphite film (JP1985181129A) is due to its higher thermal conductivity (800-2000 W/mk), becomes the focus in Heat Conduction Material gradually.But, although graphite film has higher thermal conductivity, cause thermal capacity low due to its thickness thin (10-50um) density low (<2g/m3), be not easy when equipment heating amount is larger thermal conductance to go out, affect radiating effect.
In addition, operationally, the continuous emitting electromagnetic wave outward of meeting, peak power can reach 2w to smart machine, and this is very large on the impact of surrounding environment.Therefore, for avoiding it operationally to the interference of surrounding environment, must limit some unnecessary radiation.In addition, due to the speed of data transmission and the increase of frequency and circuit board integrated level, with the interference reducing adjacent component, more and more higher requirement is proposed to the environment improving electromagnetic interference.Traditional shielding material (metal) shields undesirable electromagnetic wave by reflection electromagnetic wave, but reflection can increase the weight of the electromagnetic interference between undesirable electromagnetic wave emission source and other components.Therefore, use and can to absorb and the absorbing material of loss magnetic energy can avoid the problem of this respect, as magnetic material and blend rubber being formed of proposing in patent EP0667643B1 inhales ripple rete.
In sum, the material simultaneously having heat radiation and electro-magnetic screen function will have a wide range of applications in intelligent electronic device.In patent of invention CN101899289A, inventor is by heat radiation particle and inhale ripple particle and adhesive is blended is made into Wave-absorbing heat dissipation material, but due to the filling proportion of two kinds of particles all can not be too high, cause radiating effect and wave-absorbing effect all not obvious thus.In its another section of patent CN101888769A, inhale ripple net and be placed in two-layer silica gel heat dissipating layer, but because the thermal conductivity factor of silica gel heat dissipating layer is generally less than 5w/mk, its integral heat sink performance is subject to great restriction.In order to improve heat-conducting effect, in the patent had, graphite heat conducting material has directly been used as heat-conducting layer, inhaling ripple layer is then adopt metal (CN202603134U) or semiconductor (CN203181498U) or ferrite (CN202799566U, CN102555314A, CN202565640U), directly fit together by adhesive tape and heat-conducting layer.Although by adopting graphite heat conducting material, overall heat conductivility is improved, but cause the heat that electromagnetic wave changes into by absorbing material can not be transmitted on graphite film timely due to the thermal resistance of adhesive tape, and device conducts can not be stored on the suction ripple film of high heat capacity in time to the heat on graphite film.
Summary of the invention
The object of the present invention is to provide a kind of high heat radiation to inhale ripple composite membrane and manufacture method thereof, heat conduction and the electromagnetic wave shielding problem of electronic equipment can be solved.
For solving the problem, the invention provides the high heat radiation of one and inhaling ripple composite membrane, comprising the first release layer or first plastic protective film for plastics of compound successively, the rete that dispels the heat, suction ripple rete and the second release layer or the second plastic protective film for plastics,
Wherein, described suction ripple rete is directly coated in the surface of described heat radiation rete and solidifies; described heat radiation rete is by the first layers of two-sided or the first one side glue-line and described first release layer or the first plastic protective film for plastics compound, and described second release layer or the second plastic protective film for plastics pass through the second layers of two-sided or the second one side glue-line and described suction ripple rete compound.
Further, inhale in ripple composite membrane in above-mentioned height heat radiation, described heat radiation rete is synthetic graphite film, and the thickness of described synthetic graphite film is 10um-50um, and thermal conductivity is 800-2000W/mk.
Further, inhale in ripple composite membrane in above-mentioned height heat radiation, described suction ripple rete consist of the wave absorbing agent of 60-90% and the organic binder bond of 10-40%, the thickness of described suction ripple rete is 20um-1mm, is 80-200 at the magnetic conductivity of 1MHz frequency.
Further, inhale in ripple composite membrane in above-mentioned height heat radiation, the material of described wave absorbing agent is magnetic alloy powder, comprises the one in nickel zinc-iron alloy, ambrose alloy ferroalloy, zinc chrome ferroalloy, MnZn ferroalloy, niobium zinc-iron alloy, sendust, nichrome, niobium zinc-iron alloy, iron-nickel alloy, ferroaluminium, ferrocobalt, ferrochrome, iron silicon nickel alloy, iron, silicon, aluminum and nickel alloy, magnesium manganeisen, cobalt-nickel alloy, lithium manganese alloy and lithium cadmium ferroalloy or any combination.
Further, inhale in ripple composite membrane in above-mentioned height heat radiation, described organic binder bond is macromolecular material, comprise any one in phenolic resins, Lauxite, epoxy resin, acrylic resin, polyvinyl butyral resin, vinyl acetate and copolymer thereof, organic silica gel resinoid, polyurethane and rubber resin, or several polymer in phenolic resins, Lauxite, epoxy resin, acrylic resin, polyvinyl butyral resin, vinyl acetate and copolymer thereof, organic silica gel resinoid, polyurethane and rubber resin.
Further, inhale in ripple composite membrane in above-mentioned height heat radiation, the thickness of the first release layer and the second release layer is 0.05mm, and material is the pet film that contact surface scribbles silicone oil.
Further, inhale in ripple composite membrane in above-mentioned height heat radiation, the material of the first layers of two-sided and the second layers of two-sided is acrylic acid adhesive.
The present invention also provides a kind of and manufactures the method that ripple composite membrane is inhaled in above-mentioned height heat radiation, comprising:
Heat radiation rete be attached on the first release layer or the first plastic protective film for plastics by the first layers of two-sided or the first one side glue-line;
Heat radiation rete is directly coated in the surface of heat radiation rete and solidifies;
Second release layer or the second plastic protective film for plastics be attached on suction ripple rete by the second layers of two-sided or the second one side glue-line.
Compared with prior art, the present invention includes: the first release layer of compound or the first plastic protective film for plastics successively, heat radiation rete, inhale ripple rete and the second release layer or the second plastic protective film for plastics, wherein, described suction ripple rete is directly coated in the surface of described heat radiation rete and solidifies, described heat radiation rete is by the first layers of two-sided or the first one side glue-line and described first release layer or the first plastic protective film for plastics compound, described second release layer or the second plastic protective film for plastics are by the second layers of two-sided or the second one side glue-line and described suction ripple rete compound, solve heat conduction and the electromagnetic wave shielding problem of electronic equipment.
Accompanying drawing explanation
Fig. 1 is the structure chart of the height heat radiation suction ripple composite membrane of the embodiment of the present invention one;
Fig. 2 is the structure chart of the height heat radiation suction ripple composite membrane of the embodiment of the present invention two;
Fig. 3 is the structure chart of the height heat radiation suction ripple composite membrane of the embodiment of the present invention three;
Fig. 4 is the structure chart of the height heat radiation suction ripple composite membrane of the embodiment of the present invention four;
Fig. 5 is the structure chart of the present invention one comparative example;
Fig. 6 is the formation schematic diagram of the height heat radiation suction ripple composite membrane of the embodiment of the present invention one;
Fig. 7 is the shield effectiveness figure of the height heat radiation suction ripple composite membrane of the embodiment of the present invention one;
Fig. 8 is the shield effectiveness figure of the embodiment of the present invention one comparative example.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
The invention provides a kind of high heat radiation and inhale ripple composite membrane, comprising: successively compound the first release layer or the first plastic protective film for plastics, heat radiation rete, inhale ripple rete and the second release layer or the second plastic protective film for plastics,
Wherein, described suction ripple rete is directly coated in the surface of described heat radiation rete and solidifies; described heat radiation rete is by the first layers of two-sided or the first one side glue-line and described first release layer or the first plastic protective film for plastics compound, and described second release layer or the second plastic protective film for plastics pass through the second layers of two-sided or the second one side glue-line and described suction ripple rete and compound.Concrete; when applying; first release layer or the first plastic protective film for plastics and the second release layer or the second plastic protective film for plastics peeled off and composite membrane be covered in the electronical elements surface needing heat radiation and electromagnetic shielding, thus reaches reduction device temperature, preventing the effect of electromagnetic interference.
Preferably, described heat radiation rete is synthetic graphite film, and the thickness of described synthetic graphite film is 10um-50um, and thermal conductivity is 800-2000W/mk.
Preferably, described suction ripple rete consist of the wave absorbing agent of 60-90% and the organic binder bond of 10-40%, the thickness of described suction ripple rete is 20um-1mm, is 80-200 at the magnetic conductivity of 1MHz frequency.Concrete, synthetic graphite film, thermal conductivity is up to 800-2000w/mk, and inhale the mixture that ripple rete is soft-magnetic alloy powder and organic binder bond, inhale ripple rete and be not directly coated in synthetic graphite film surface by any adhesive tape, thus the thermal resistance effectively reducing graphite film and inhale between ripple film, when there is no adhesive tape bonding, owing to inhaling the very high alloy loading of ripple film, and graphite film itself has very high conductance, graphite film and combining closely of suction ripple film define the one of conduction, consequently with suction ripple film, there is higher shield effectiveness than the existing graphite film bondd by adhesive tape.
Preferably, the material of described wave absorbing agent is magnetic alloy powder, comprises the one in nickel zinc-iron alloy, ambrose alloy ferroalloy, zinc chrome ferroalloy, MnZn ferroalloy, niobium zinc-iron alloy, sendust, nichrome, niobium zinc-iron alloy, iron-nickel alloy, ferroaluminium, ferrocobalt, ferrochrome, iron silicon nickel alloy, iron, silicon, aluminum and nickel alloy, magnesium manganeisen, cobalt-nickel alloy, lithium manganese alloy and lithium cadmium ferroalloy or any combination.
Preferably, described organic binder bond is macromolecular material, comprise any one in phenolic resins, Lauxite, epoxy resin, acrylic resin, polyvinyl butyral resin, vinyl acetate and copolymer thereof, organic silica gel resinoid, polyurethane and rubber resin, or several polymer in phenolic resins, Lauxite, epoxy resin, acrylic resin, polyvinyl butyral resin, vinyl acetate and copolymer thereof, organic silica gel resinoid, polyurethane and rubber resin.
The present invention also provides a kind of and manufactures the method that ripple composite membrane is inhaled in above-mentioned height heat radiation, comprising:
Heat radiation rete be attached on the first release layer or the first plastic protective film for plastics by the first layers of two-sided or the first one side glue-line;
Heat radiation rete is directly coated in the surface of heat radiation rete and solidifies;
Second release layer or the second plastic protective film for plastics be attached on suction ripple rete by the second layers of two-sided or the second one side glue-line.
Embodiment 1
As shown in figs. 1 and 6, the structure that ripple composite membrane is inhaled in high heat radiation comprises the first release layer 11, first layers of two-sided 12 from top to bottom, and heat radiation rete 13 inhales ripple rete 14, second layers of two-sided 15, and the second release layer 16.Wherein, described suction ripple rete 14 is directly coated in the surface of described heat radiation rete 13 and solidifies, described heat radiation rete 13 is by the first layers of two-sided 12 and described first release layer compound, described second release layer 16 is by the second layers of two-sided 15 and described suction ripple rete 14 compound, the thickness of the first release layer 11 and the second release layer 16 is 0.05mm, material is the PET film (PETG) that contact surface scribbles silicone oil, double faced adhesive tape is acrylic acid adhesive, heat radiation rete is synthetic graphite film, its thickness is 0.01mm, and thermal conductivity is 1900W/mk.Inhaling ripple membrane material is that thickness is 0.05mm, and magnetic conductivity is 80 containing the Fe-Ni Alloy Powder of 80% weight ratio and the epoxy resin adhesive of 20% weight ratio.
Embodiment 2
As shown in Figure 2, the structure that ripple composite membrane is inhaled in high heat radiation comprises the first plastic protective film for plastics 17, first layers of two-sided 12 from top to bottom, and heat radiation rete 13 inhales ripple rete 14, second layers of two-sided 15, and the second release layer 16.Wherein, described suction ripple rete 14 is directly coated in the surface of described heat radiation rete and solidifies; described heat radiation rete 13 is by the first layers of two-sided 12 and described first plastic protective film for plastics compound 17, and described second release layer 16 is by the second layers of two-sided 15 and described suction ripple rete 14 compound.
Embodiment 3
As shown in Figure 3, the structure that ripple composite membrane is inhaled in high heat radiation comprises the first release layer 11, first layers of two-sided 12 from top to bottom, and heat radiation rete 13 inhales ripple rete 14, second layers of two-sided 15, and the second plastic protective film for plastics 18.Wherein, described suction ripple rete 14 is directly coated in the surface of described heat radiation rete 13 and solidifies; described heat radiation rete 13 is by the first layers of two-sided 12 and described first release layer compound, and described second plastic protective film for plastics 18 is by the second layers of two-sided 15 and described suction ripple rete 14 compound.
Embodiment 4
As shown in Figure 4, the structure that ripple composite membrane is inhaled in high heat radiation comprises the first plastic protective film for plastics 17, first layers of two-sided 12 from top to bottom, and heat radiation rete 13 inhales ripple rete 14, second layers of two-sided 15, and the second plastic protective film for plastics 18.Wherein, described suction ripple rete 14 is directly coated in the surface of described heat radiation rete 13 and solidifies; described heat radiation rete 13 is by the first layers of two-sided 12 and described first plastic protective film for plastics 17 compound, and described second plastic protective film for plastics 18 is by the second layers of two-sided 15 and described suction ripple rete 14 compound.
Comparative example 1
As shown in Figure 5, a kind of existing its structure of suction ripple composite membrane comprises the first plastic protective film for plastics 17, first layers of two-sided 12 from top to bottom, and heat radiation rete the 13, three layers of two-sided 19, inhales ripple rete 14, second layers of two-sided 15, and the second plastic protective film for plastics 18.Wherein, the material of the first layers of two-sided 12, second layers of two-sided 15 and the 3rd layers of two-sided 19 is acrylic acid adhesive, and heat radiation rete 13 is synthetic graphite film, and its thickness is 0.01mm, and thermal conductivity is 1900W/mk.The material of inhaling ripple rete 14 is that thickness is 0.05mm, and magnetic conductivity is 80 containing the Fe-Ni Alloy Powder of 80% weight ratio and the epoxy resin adhesive of 20% weight ratio.
Respectively shield effectiveness experiment is carried out to the suction ripple composite membrane of embodiment 1 and comparative example 1, shield effectiveness (dB) is by Agilent E5061A vector network tester in accordance with ASTM-D-4935 testing standard, the test of DN1015 shield effectiveness testing arrangement, it the results are shown in the experimental result of embodiment 1 as shown in Figure 7, and the experimental result of comparative example 1 as shown in Figure 8.From the test result of Fig. 7 and Fig. 8, in the frequency range of 0-1GHz, the electromagnetic shielding effectiveness of embodiment 1 is average 88dB, and owing to adding the nonconducting double faced adhesive tape of one deck between heat radiation graphite linings and suction ripple layer in comparative example 1, its electromagnetic shielding effectiveness is average 76dB, 12dB lower than the shield effectiveness of embodiment 1.
Respectively thermal conductivity test experiments is carried out to the suction ripple composite membrane of embodiment 1 and comparative example 1, thermal conductivity test is in accordance with ASTM-E-1461 testing standard by resistance to LFA 447 heat conduction coefficient tester test of speeding, and the thermal conductivity test result of embodiment 1 and comparative example 1 is as shown in table 1.From test result, the thermal conductivity factor of embodiment 1 is 1076.774 W/mk, and owing to adding the nonconducting double faced adhesive tape of one deck between heat radiation graphite linings and suction ripple layer in comparative example 1, its thermal conductivity factor is 989.221W/mk, 87.553 W/mks lower than the thermal conductivity factor of embodiment 1.
Table 1
Above-mentioned shield effectiveness and thermal conductivity test experiments result show, high heat radiation of the present invention is inhaled ripple composite membrane and had significantly excellent electromagnetic shielding and radiating effect by pasting the heat conducting film formed with the composite inhaling ripple film relative to existing.
Embodiment 5
As shown in Figure 1, its structure comprises the first release layer 11, first layers of two-sided 12 from top to bottom, heat radiation rete 13, inhales ripple rete 14, second layers of two-sided 15, and the second release layer 16.Wherein, described suction ripple rete 14 is directly coated in the surface of described heat radiation rete 13 and solidifies, described heat radiation rete 13 is by the first layers of two-sided 12 and described first release layer compound, described second release layer 16 is by the second layers of two-sided 15 and described suction ripple rete 14 compound, the thickness of the first release layer 11 and the second release layer 16 is 0.05mm, material is the PET film (PETG) that contact surface scribbles silicone oil, double faced adhesive tape is acrylic acid adhesive, heat radiation rete is synthetic graphite film, its thickness is 0.01mm, and thermal conductivity is 1900W/mk.Inhaling ripple membrane material is that thickness is 0.05mm, and magnetic conductivity is 80 containing the Fe-Ni Alloy Powder of 80% weight ratio and the epoxy resin adhesive of 20% weight ratio.The method of ripple composite membrane is inhaled in the height heat radiation manufacturing the present embodiment, comprising:
Step 1, uses compounding machine to be attached on the PET mould release membrance of 0.05mm by the synthetic graphite heat conducting film of 0.01mm by acrylic acid double faced adhesive tape,
Step 2, mixes the epoxy resin adhesive of the Anhyster powder with 20% weight ratio that are mixed with 80% weight ratio and uses coater on graphite guide hotting mask surface and solidify to form the suction ripple rete of 0.05mm in agitator tank,
Step 3, is used compounding machine to be attached to by acrylic acid double faced adhesive tape by the PET mould release membrance of 0.05mm and inhales on ripple rete.When applying, mould release membrance being peeled off and composite membrane is covered in the electronical elements surface needing heat radiation and electromagnetic shielding, thus reaching reduction device temperature, preventing the effect of electromagnetic interference.
The present invention includes the first release layer or first plastic protective film for plastics of compound successively, heat radiation rete, inhale ripple rete and the second release layer or the second plastic protective film for plastics, wherein, described suction ripple rete is directly coated in the surface of described heat radiation rete and solidifies, described heat radiation rete is by the first layers of two-sided or the first one side glue-line and described first release layer or the first plastic protective film for plastics compound, described second release layer or the second plastic protective film for plastics are by the second layers of two-sided or the second one side glue-line and described suction ripple rete compound, solve heat conduction and the electromagnetic wave shielding problem of electronic equipment.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. a ripple composite membrane is inhaled in high heat radiation, it is characterized in that, comprises the first release layer or first plastic protective film for plastics of compound successively, the rete that dispels the heat, suction ripple rete and the second release layer or the second plastic protective film for plastics,
Wherein, described suction ripple rete is directly coated in the surface of described heat radiation rete and solidifies; described heat radiation rete is by the first layers of two-sided or the first one side glue-line and described first release layer or the first plastic protective film for plastics compound, and described second release layer or the second plastic protective film for plastics pass through the second layers of two-sided or the second one side glue-line and described suction ripple rete compound.
2. ripple composite membrane is inhaled in high heat radiation as claimed in claim 1, and it is characterized in that, described heat radiation rete is synthetic graphite film, and the thickness of described synthetic graphite film is 10um-50um, and thermal conductivity is 800-2000W/mk.
3. ripple composite membrane is inhaled in the height heat radiation as described in claim 1, it is characterized in that, described suction ripple rete consist of the wave absorbing agent of 60-90% and the organic binder bond of 10-40%, the thickness of described suction ripple rete is 20um-1mm, is 80-200 at the magnetic conductivity of 1MHz frequency.
4. ripple composite membrane is inhaled in the height heat radiation as described in claim 3, it is characterized in that, the material of described wave absorbing agent is magnetic alloy powder, comprises the one in nickel zinc-iron alloy, ambrose alloy ferroalloy, zinc chrome ferroalloy, MnZn ferroalloy, niobium zinc-iron alloy, sendust, nichrome, niobium zinc-iron alloy, iron-nickel alloy, ferroaluminium, ferrocobalt, ferrochrome, iron silicon nickel alloy, iron, silicon, aluminum and nickel alloy, magnesium manganeisen, cobalt-nickel alloy, lithium manganese alloy and lithium cadmium ferroalloy or any combination.
5. ripple composite membrane is inhaled in the heat radiation as described in claim 3, it is characterized in that, described organic binder bond is macromolecular material, comprise any one in phenolic resins, Lauxite, epoxy resin, acrylic resin, polyvinyl butyral resin, vinyl acetate and copolymer thereof, organic silica gel resinoid, polyurethane and rubber resin, or several polymer in phenolic resins, Lauxite, epoxy resin, acrylic resin, polyvinyl butyral resin, vinyl acetate and copolymer thereof, organic silica gel resinoid, polyurethane and rubber resin.
6. ripple composite membrane is inhaled in the height heat radiation as described in claim 1, and it is characterized in that, the thickness of the first release layer and the second release layer is 0.05mm, and material is the pet film that contact surface scribbles silicone oil.
7. ripple composite membrane is inhaled in the height heat radiation as described in claim 1, and it is characterized in that, the material of the first layers of two-sided and the second layers of two-sided is acrylic acid adhesive.
8. a method for ripple composite membrane is inhaled in the height heat radiation manufactured as described in claim 1 ~ 7, it is characterized in that, comprising:
Heat radiation rete be attached on the first release layer or the first plastic protective film for plastics by the first layers of two-sided or the first one side glue-line;
Heat radiation rete is directly coated in the surface of heat radiation rete and solidifies;
Second release layer or the second plastic protective film for plastics be attached on suction ripple rete by the second layers of two-sided or the second one side glue-line.
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| CN201410140729.9A CN104972709B (en) | 2014-04-10 | 2014-04-10 | Ripple composite membrane and its manufacture method are inhaled in height radiating |
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| CN106807948A (en) * | 2017-02-20 | 2017-06-09 | 南京三乐集团有限公司 | A kind of klystron preparation method of microwave attenuation film |
| CN107591230A (en) * | 2016-07-07 | 2018-01-16 | 三星电机株式会社 | Magnetic piece and electronic equipment |
| CN108461249A (en) * | 2017-02-21 | 2018-08-28 | 三星电机株式会社 | Magnetic piece and electronic device |
| CN109462973A (en) * | 2018-08-01 | 2019-03-12 | 昆山联滔电子有限公司 | A kind of magnetic field shielding piece and its manufacturing method |
| CN109874288A (en) * | 2019-04-12 | 2019-06-11 | 佘琪春 | Inhale wave shielding material, electronic equipment, living electric apparatus and exposure suit |
| CN110446407A (en) * | 2019-07-15 | 2019-11-12 | 川泽科技(武汉)有限公司 | A kind of high-performance wave-absorbing material |
| CN110845802A (en) * | 2019-10-25 | 2020-02-28 | 昆山汉品电子有限公司 | Manufacturing method of shielding heat dissipation type wave-absorbing material and adhesive tape structure thereof |
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| CN107591230A (en) * | 2016-07-07 | 2018-01-16 | 三星电机株式会社 | Magnetic piece and electronic equipment |
| CN106626583A (en) * | 2016-11-16 | 2017-05-10 | 广州宏庆电子有限公司 | Ultra-thin heat dissipation film and preparation method thereof |
| CN106626583B (en) * | 2016-11-16 | 2021-11-12 | 广州宏庆电子有限公司 | Ultrathin heat dissipation film and manufacturing method thereof |
| CN106807948B (en) * | 2017-02-20 | 2019-07-05 | 南京三乐集团有限公司 | A kind of preparation method of the effective microwave attenuation film of velocity modulation |
| CN106807948A (en) * | 2017-02-20 | 2017-06-09 | 南京三乐集团有限公司 | A kind of klystron preparation method of microwave attenuation film |
| CN108461249A (en) * | 2017-02-21 | 2018-08-28 | 三星电机株式会社 | Magnetic piece and electronic device |
| CN108461249B (en) * | 2017-02-21 | 2021-11-23 | 三星电机株式会社 | Magnetic sheet and electronic device |
| CN109462973A (en) * | 2018-08-01 | 2019-03-12 | 昆山联滔电子有限公司 | A kind of magnetic field shielding piece and its manufacturing method |
| CN109874288A (en) * | 2019-04-12 | 2019-06-11 | 佘琪春 | Inhale wave shielding material, electronic equipment, living electric apparatus and exposure suit |
| CN109874288B (en) * | 2019-04-12 | 2020-09-15 | 佘琪春 | Wave-absorbing shielding material, electronic equipment, domestic electric appliance and radiation-proof clothes |
| CN110446407A (en) * | 2019-07-15 | 2019-11-12 | 川泽科技(武汉)有限公司 | A kind of high-performance wave-absorbing material |
| CN110845802A (en) * | 2019-10-25 | 2020-02-28 | 昆山汉品电子有限公司 | Manufacturing method of shielding heat dissipation type wave-absorbing material and adhesive tape structure thereof |
| CN110861359A (en) * | 2019-11-25 | 2020-03-06 | 苏州驭奇材料科技有限公司 | Composite heat dissipation wave absorption film |
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| CN104972709B (en) | 2017-11-17 |
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